
Access Networks ◾ 11
rate (FER) as a measured report to the RNC for cells that belong to different Node
Bs, but are controlled by the same RNC. e Node B also allows the UE to adjust
its power using downlink (DL) transmission power control (TPC) commands via
the inner-loop power control on the basis of uplink (UL) TCP information [4].
e RNC corresponds to the GSM BSC. Its functions are to perform the
Radio Resource Control (RRC) protocol that defines the messages and procedures
between UE and UTRAN. e main tasks of the RNC are: to control logical
resources provided by the Node Bs, to be responsible for the layer 2 processing of